Does Ryzen 7000-series (or ASUS’s BIOS for it) have an additional limit based on iGPU activity – maybe implemented in AGESA? An auto-Eco Mode for the CPU side? And if so, is there any way to disable or otherwise influence it?
I’m running an OC’d dGPU-less mITX build listed below. Without D3D activity e.g. fullscreen YouTube running in Edge Dev or constant scrolling (as measured in HWiNFO GPU D3D Usage ~ >=25% ), BOINC all-thread load runs at a highly variable 3.5-5.0Ghz, averaging 4.2-4.6Ghz depending on ambient temperature – and CPU temps usually approach or slightly exceed 95C.
When constant fullscreen screen activity occurs, such as a page scroll or higher-resolution video, it drops down to a suspiciously consistent 2.75 Ghz +-50Mhz (or 2.7 Ghz discounting 102Mhz base OC) common to all cores. Simultaneously temperature drops such that it is not approaching or at 95C (if that was previously the case).
None of PPT [FAST]/TDC/EDC limits are reached – max PPT is 125W and package power has hit 110W but averages 70-90W under normal load, and 50-60W if the iGPU is used. “Frequency Limit – Global” is consistently ~2700Mhz in this situation – unless it is particularly hot in the middle of the day, in which case it might be driven lower.
This isn’t technically, a “problem” in that the system is working, and running _close_ to its maximum. But I expected the CPU to boost to ~95 C (which it can if just running BOINC CPU units or a stress test – it averages 4.67Ghz all-core and can hit 5.25Ghz single-core), and also to try to maintain base clock of 3600Mhz (vs. “3600Mhz unless the iGPU is in use”). As it is, Core Utility hovers at 70% with display/D3D activity, vs. 80-130%.
Thermal limit with such video activity might be ~70-85% (and “CPU Die (average)” on which its based is 76 C) or ~90-94%/84-89 C if D3D is 100% with GPU units being processed in BOINC.
Maybe the concern is that iGPU usage will suddenly push it over the limit? Or perhaps some of the overclocking/undervolting I’ve done triggers this mode? The system appears stable with TestMem5 using the Extreme1@anta777 preset and OCCT’s Small Extreme CPU test under various core groups.
(I thought perhaps it might be due to DRAM Write @ 29 Gbps, on the grounds that the CPU has to wait for the IO Die due to the max of ~32 Gbps with one CCD; but it happens when it’s 19 Gbps, too, and read usage varies from 1/3-2/3 the 64 Gbps max.)
GPU: [AMD Radeon(TM) Graphics (7000-series Raphael iGPU)](https://www.anandtech.com/show/17585/amd-zen-4-ryzen-9-7950x-and-ryzen-5-7600x-review-retaking-the-high-end/6) @2780 MHz +14 GFX CO
CPU: [AMD Ryzen 5 7600](https://www.amd.com/en/products/apu/amd-ryzen-5-7600) 6 CORE 12 THREADS @+200Mhz PBO [-28/-26/-28/-28/-24/-28 CO]
Motherboard: [ROG STRIX B650E-I GAMING WIFI](https://rog.asus.com/us/motherboards/rog-strix/rog-strix-b650e-i-gaming-wifi-model/)
BIOS Version: [1654 (AGESA 1.0.0.7c)](https://rog.asus.com/us/motherboards/rog-strix/rog-strix-b650e-i-gaming-wifi-model/helpdesk_bios/)
RAM: [2x32GB CORSAIR VENGEANCE RGB PRO 5600MHZ CL40](https://www.corsair.com/uk/en/p/memory/cmk64gx5m2b5600c40/vengeancea-64gb-2x32gb-ddr5-dram-5600mhz-c40-memory-kit-a-black-cmk64gx5m2b5600c40) (@5904MHZ 40-34-34-74-117 1.17V)
PSU: [InWin IP-AD Series C 200W Gold](https://www.in-win.com/en/pc-power-supply/ip-ad-series-c/APAC) (IP-AD200C7-2)
Case: [InWin Chopin MAX](https://www.in-win.com/en/gaming-chassis/chopin-max) w/NH-L9a-AM5 2800 RPM cooler + NA-FD1 fan duct + 2000 RPM Artic 92mm fan
Monitor: [LG 27″ 27UP850N-W](https://www.lg.com/uk/monitors/uhd-4k-5k/27up850n-w-bek/) 3840×2160 4K IPS 60Hz FreeSync HDR400 LED (over USB-C Alt Mode)
Operating System & Version: Windows 11 Pro 22H2 22621.2215
GPU Drivers: AMD Adrenalin 23.9.1
Chipset Drivers: [AMD Chipset Driver V5.06.16.400](https://rog.asus.com/us/motherboards/rog-strix/rog-strix-b650e-i-gaming-wifi-model/helpdesk_download/) and [V5.08.02.027](https://www.amd.com/en/support/chipsets/amd-socket-am5/b650e) (not yet on ASUS’ site)
Background Applications: Bitcoin Core, BOINC, Edge Dev